1055441440 has 48 divisors (see below), whose sum is σ = 2501718912. Its totient is φ = 420781824.

The previous prime is 1055441389. The next prime is 1055441461. The reversal of 1055441440 is 441445501.

It is a super-2 number, since 2×1055441440² = 2227913266538547200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055441399 and 1055441408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38377 + ... + 59863.

It is an arithmetic number, because the mean of its divisors is an integer number (52119144).

Almost surely, 2^1055441440 is an apocalyptic number.

1055441440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1055441440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250859456).

1055441440 is an abundant number, since it is smaller than the sum of its proper divisors (1446277472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055441440 is a wasteful number, since it uses less digits than its factorization.

1055441440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21809 (or 21801 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1055441440 is about 32487.5582338839. The cubic root of 1055441440 is about 1018.1490975493.

Adding to 1055441440 its reverse (441445501), we get a palindrome (1496886941).

The spelling of 1055441440 in words is "one billion, fifty-five million, four hundred forty-one thousand, four hundred forty".